<template>
  <div>
    <div class="center">
      <div class="item"></div>
    </div>
    <div class="start">
      <div class="item"></div>
    </div>
    <div class="end">
      <div class="item"></div>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {};
  },
  methods: {},
};
</script>
<style scoped>
.center {
  display: flex;
  align-items: center;
  height: 150px;
  background: blue;
}

.start {
  display: flex;
  justify-content: flex-start;
  height: 150px;
  background: blue;
}
.end {
  display: flex;
  align-items: flex-end;
  height: 150px;
  background: blue;
}

.item {
  width: 100px;
  height: 100px;
  border: 1px solid #000;
  background: red;
}
</style>